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tracing: Use IS_ERR() check for return value of tracing_init_dentry()

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tracing_init_dentry() will soon return NULL as a valid pointer for the
top level tracing directroy. NULL can not be used as an error value.
Instead, switch to ERR_PTR() and check the return status with
IS_ERR().

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-01-20 11:14:16 -05:00 • committed by Steven Rostedt
parent 3efb5f21a3
commit 14a5ae40f0
9 changed files with 12 additions and 12 deletions
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2
kernel/trace/trace_functions_graph.c
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@ -1437,7 +1437,7 @@ static __init int init_graph_debugfs(void)
struct dentry *d_tracer;
d_tracer = tracing_init_dentry();
if (!d_tracer)
if (IS_ERR(d_tracer))
return 0;
trace_create_file("max_graph_depth", 0644, d_tracer,